Hi list,
I'm not sure, but I think the recent patch to keep i915 systems from
locking up / slowing down in case of irq storms didn't fully help.
I compiled 3.10, but every now and then, my system has the same
symptoms as before.
grep storm /var/log/messages
Jul 5 21:55:43 muretop kernel: [ 324.767375] [drm] HPD interrupt
storm detected on connector DP-3: switching from hotplug detection to
polling
Jul 6 23:05:57 muretop kernel: [ 200.372208] [drm] HPD interrupt
storm detected on connector HDMI-A-1: switching from hotplug detection
to polling
Jul 6 23:07:51 muretop kernel: [ 313.752039] [drm] HPD interrupt
storm detected on connector DP-3: switching from hotplug detection to
pol
I notice up to 50% CPU from kworker/u8:0 when my system slows down.
I'm new to kernel development, but if you tell me what to do, I'm very
willing to help diagnosing this.
Regards
jan
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